diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2013-11-04 11:00:59 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2013-11-08 15:39:55 +1000 |
| commit | 6d8d163132d7df6ca701efcde7832046ecb2f040 (patch) | |
| tree | a1ad9c04530d81f85b67198f190957ae0f981290 /drivers/gpu/drm | |
| parent | d7b023d87a900fa80802e35aa0afbb3d60e808dc (diff) | |
| download | linux-6d8d163132d7df6ca701efcde7832046ecb2f040.tar.bz2 | |
drm/nvd0-/disp: reorder writes to lane current control regs
Matches the nv94-nvc0 commit with the same title. Doesn't fix a reported issue,
but NVIDIA use this ordering here too, so let's do it just in case.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/engine/disp/sornvd0.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/sornvd0.c b/drivers/gpu/drm/nouveau/core/engine/disp/sornvd0.c index 9e1d435d7282..d2df572f16a3 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/sornvd0.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/sornvd0.c @@ -93,8 +93,9 @@ nvd0_sor_dp_drv_ctl(struct nouveau_disp *disp, struct dcb_output *outp, { struct nouveau_bios *bios = nouveau_bios(disp); struct nv50_disp_priv *priv = (void *)disp; + const u32 shift = nvd0_sor_dp_lane_map(priv, lane); const u32 loff = nvd0_sor_loff(outp); - u32 addr, shift = nvd0_sor_dp_lane_map(priv, lane); + u32 addr, data[3]; u8 ver, hdr, cnt, len; struct nvbios_dpout info; struct nvbios_dpcfg ocfg; @@ -109,9 +110,12 @@ nvd0_sor_dp_drv_ctl(struct nouveau_disp *disp, struct dcb_output *outp, if (!addr) return -EINVAL; - nv_mask(priv, 0x61c118 + loff, 0x000000ff << shift, ocfg.drv << shift); - nv_mask(priv, 0x61c120 + loff, 0x000000ff << shift, ocfg.pre << shift); - nv_mask(priv, 0x61c130 + loff, 0x0000ff00, ocfg.unk << 8); + data[0] = nv_rd32(priv, 0x61c118 + loff) & ~(0x000000ff << shift); + data[1] = nv_rd32(priv, 0x61c120 + loff) & ~(0x000000ff << shift); + data[2] = nv_rd32(priv, 0x61c130 + loff) & ~(0x0000ff00); + nv_wr32(priv, 0x61c118 + loff, data[0] | (ocfg.drv << shift)); + nv_wr32(priv, 0x61c120 + loff, data[1] | (ocfg.pre << shift)); + nv_wr32(priv, 0x61c130 + loff, data[2] | (ocfg.unk << 8)); nv_mask(priv, 0x61c13c + loff, 0x00000000, 0x00000000); return 0; } |